Revenue

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

REVENUE

14. REVENUE

We primarily offer the First Defense® product line to dairy and beef producers to prevent scours in newborn calves. Generally, our products are promoted to veterinarians and dairy and beef producers by our sales team and then sold through distributors. Our primary market is North America. We do sell into select international regions and may expand this international reach in the future. There were no material changes between the allocation and timing of revenue recognition during the three-month period ended March 31, 2020 or the year ended December 31, 2019. We do not have any contract assets such as contracts for which we have satisfied the performance obligations but do not yet have the right to bill for or contract liabilities such as customer advances. All trade receivables on our balance sheets are from contracts with customers. We incur no material costs to obtain contracts.

The following table presents our product sales disaggregated by geographic area:

	During the Three-Month Periods Ended March 31,
	2020		2019
United States	$	4,357,682	$	3,777,746
Other		552,706		632,815
Total product sales	$	4,910,388	$	4,410,561

The following table presents our product sales disaggregated by major product category:

	During the Three-Month Periods Ended March 31,
	2020		2019
First Defense® product line	$	4,819,191	$	4,140,917
Other animal health		91,197		136,043
Other		—		133,601
Total product sales	$	4,910,388	$	4,410,561